Apparatus for making armatures



R. H. AHLERS ET AL APPARATUS FOR MAKING ARIIATURES Filed Nov, 20. 192:: 3 Sheets-$heet 1 Oct. 13,1925. 1,556,892

R. H. AHLERS ET AL APPARATUS FOR MAKING ARIATURES Filed Nov. 20. 1923' 3 Shoots-Shut 2- R. H. AHLERS ET AL APPARATUS FOR MAKING ARMATURES Filed Nov. 20, 1923 1'5 Sheets-Sheet :5

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Patented Oct. 13, 1 925.

- ITED STATE-5 PATENT-'0FF'I'CE;,2

Q a eatioaaleano ab za i-ieasl; s fiainogensm ownivthatfwe, Ronnngr Arrnnns and EARL M. PQLK, citizens offlth e United States of America, 'esidin t j v at Dayton, cou y o t flm m dfietwi o m, have invented certain new and useful. provelnents in Apparatus for Making Anna tures, f which theifol lowingis vaifuli cl eandv exact descriptionv I; i, y; l. This invention relates to the manufacture of arn atures for dynamo-electric; nachines,: and particularly tofthe attacl nnent of e ar tu ond c orswa hs bar at thecommutator. J a One of the objects of theinventionis to attach all of the armature oonductorsto their respective ,corn nutator bar s sin ultaneously in ordeutoirednoe the cost of iiianiifacture. a A l ,1) In order o] accomplish} this object the risers of the commutator bars each include wo p ed de r b e f qr ena d fi in a'. notch which receives the( ends of v certain armature oonductorsi flhe lnaehinet in eluded in the present invention causes the riser P ti n Q i e bar's eeehes ma r taneously' against, the ends of their {IIQSRQQT tive armature conductors, so as to attach them to their proper cornmutatoi barst;

Eurther objects I and advantages of the present invention will be apparent fron i the following description, reference being had to the accompanying: drawings wherein, a preferred embodiment of v one jfor m of the present. invention a is clearly ;shown. T t

In thedravvingsi n 1 Fig. 1 is ,an elevation partly l in longn Ltudinal section of, a nlachineffor forming con niutator isers aboutthe ends of ar na tureconductor"leads;1f

, Fig, 2isa plan viewthereof fl Fig. 3 is. a f longitudinal sectional {YiQW taken on th e line B KOfQF igQZQ v Fig. 4: is. aviewsimi lar to IBig.I 3 showing certain parts in I other positions; g i N 1 F g. 5 is a perspective View of a comrnuf tator bar showing its conducting segments and risers; a i a j, Fig.5 is a di a-gran rnatic view]on an enlarged soale showing the: location of the rise-rs and armature conductor leads before the risers are formed about the leads :and also apparatus for performing this opera- 0 e t a is avview mil #9 Fig fit howm APPARATUS :FoR gMAiiiNC ARMAT RES.

their 1 fO Tm d aboutithei arinatu duct-ingleadsfl Q} If A Tillie process t carried out by v the machine to: be described is illustrated in. 11F igs 5', 6 and, .fThe commutator tofbel operated upon by this machine. includes an annulus of lin sulatedv. commutator bars. Eachhbar is represented-Pas a wholeby numeral 20 in igj and includes a se ment 2 1 fvvedge hf ted i oross sec ion andtworisenbars 22' and 123 "having companion gd'eforinable por io s or ita g l it-a 5QZJ Q P -i 5' These liars are maintained in assembled re; lat on .b t my l-ts i l c amp ng T'de Which cooperates Withit dove tailfifitp i jectin'g from each segment and riser bar. The ends 30 and 3119f ava1 m ur@ conlus ers. 2 a 33,1 pec ve y, are a' betvveen the riser'tangs 24 and 25 r ality ,ofradially movable are caused to move radially toward the t commutator from a position shovvn in ,6 ;to a positionshown in Fig.1 7 causesfithe mugs 24. land 25 to be formed aroundgthe commutator bar je as 31 and; as shown in F g-i h a h ne ,is o l w ichtnis adapted; to receive an; armature including 199 W n n and pq m aw andiwh i h pr w i ts lml a y: pon a as pi the commutator the operations vh eh have ju'st beendescribedt' a The 1 a ac ine incliidesij a frani A0. adapted rarest upon a a 'benc hjil ch s pro'i d i a 1 42 t perm t a hearing43] carried by the-"frainefwhbo extend Lbelo w gthe "top of "the :bench The frame 140 provides a a mounting flange 4}}; to .wh e i tt h by bo s- 5@ flmfisitfi a coupling member or extension/L7 which "is PP QXim lya h l wcy n in s ap l- The coupling vincludes a mounting flange 8- t6 'whi h 5 at hed y 4Q a R fi inderfiothaving a removable head"51 attached'byscrevvs 52. A piston 53 mounted for reciprocation in .thev c vlinder 50 and is attached to piston re do l. The rod 4 slides through stuffing box 55 provided thei.(jzylinderLand1 attached by pin 56 throi igh -a sorewv 5 7a Nuts 58 ajndg59 cooperate; with the screwfi'? ,for-a purposeto be "described. ,-T1ie upper' end of screw 57 is attached by pin 60 to a plungerfiL-which slidesthrough the bearing 43 and {carries at itstupper, end a I table 62 lsupportingia plura tyw e ge-sh p d 2 115! 68,-, ach

cam includes a cylindrical shank 64 which is threaded to receive a nut65 by means of which the cam is secured to the table.

The cams, 63 are guided by means of a block attac-hed to the frame 40 by screws 71. The block 7 0 is provided with a plurality of radially extending elongated holes 72 which merge into radially extending notches each for receiving and guiding a slide 73. The slides 7 3 move along radii from the center of the machine and each slide is provided with an inclined back edge 74 which is engaged by a camming. block 63. The inner end or working portion of the slide 7 3 includes inwardly converging plane surfaces 75 joined by a convex arcuate surface'76, and the plane surfaces 7 5 merge into concave arcua'te surfaces 77. The slide 73 is bored to receive a spring 78 which bears atone end against the block 70 thereby tending to move the slide away from the center of the machine. Upward movement of the slide is prevented by a retaining ring 80 which isattached to the'guideblock 70' by screws 81.

Centrally thereof, the bearing block carries a detachable bushing 82 having a central aperture 83 for receiving the shaft of an armature.

The mode of using the machine is as follows:

The. table62 and the cam block 63 are caused tobe located in the position'shown in Fig. 4 by introducing fluid pressure into the cylinder 50 below the piston 53 by any suitable means, not shown; Then an armature including a core 91 and a plurality of windings having portions such as shown at 32- and' 33 in Fig. 6 and a commutator having bars such as shown in Fig; 5 all assembled on a shaft 92 isrplacedin the apparatus as shown in Fig. 4, one end of the shaft being received by the bushing 82 in order to locate the armature centrally of the machine. By any suitable means, not shown, the cylinder space under the piston 53 is vented 'toatmosphere, and fluid pressure is introduced in the cylinder above the piston to cause the table and cam blocks to move in the position shown in Figs; 3 and 2 This operation causes the slides/7 3 to move from positions indicated in Fig. 6 to positions indicated in Fig. 7. The surfaces? 5 and 76 of each slide enter between adjacent ta-ngs 2 5 and 24 of adjacent commutator bars and cause the companiontangs 24 and 25 of a bar to be pressed against the ends 30 and 31 of the armature conductors while the ends of the tangs are curled over by engagement with the surfaces77 so that the armature conductors are attached to their respective commutator bars.

By venting the cylinder space above the piston 53 and introducing fluid pressure below the piston, the table62' is returned to the position shown in Fig. 4 and the armature can then be removed.

The downward movement of the cams 63 is limited by the nut 59 striking a surface on the coupling 47. The throw of cams 63 can be adjusted by regulating the nuts 58 and 59.

\Vhile the form of embodiment of the invention as herein disclosed, constitute a preferred form, it is to be understood that other forms might be adopted, all coming within the scope of the claims which follow.

That is claimed is as follows:

1. Apparatus for making an armature including a commutator, the risers of which include spaced deformable portions-defining notches for receiving armature conductors which includes in combination, means for holding the armature, a plurality of riser deforming members supported for movement toward the commutator, and means for simultaneously causing said riser deforming members to engage the risers and force them into engagement with their respective conductors.

2'. Apparatus for making an armature including a commutator, the risers of which include spaced bendable portions extending transversely from the commutator and de fining notches for receiving armature conductors which includes, in combination, means for holding. the armature, a plurality of riser bending members supported for movement transversely to the commutator, and means for simultaneously moving said riser bending members against the risers to bend them against their respective conductors.

.3. Apparatus for making an armature including. a commutator, the risers of which includespaced bendable portions extending substantially radially from the commutator and defining notches for receiving armature conductors which includes, in combination, means for holding the armature, a plurality of forming members each movable between certain risers and adapted to cause the risers of each bar to'be bent against certain armature conductors, and means for actuating said members simultaneously;

4. Apparatus for'm'aking an armature including a commutator, the risers of'which include spaced bendable portions extending substantially radially from the commutator and defining notches for receiving armature conductors which includes, in combination, means for holding'the armature, a plurality of forming members each radially movable with respect to the commutator and each adapted to move between certain risers and to bend themagainst certain armature conductors, a plurality of cams each movable longitudinally of the commutator for moving a forming member, and means for moving" all of the cams'simultane'ously.

5. Apparatus for making an armature including a commutator, the risers of which include spaced bendable portions extending substantially radially from the commutator and defining notches for receiving armature conductors which includes, in combination, a block adapted to supportan armature vertically, a plurality of horizontally sliding members supported by the block and each adapted to be received between certain risers and bend them against certain armature conductors, a plurality of cams verti-' cally movable through the block and each adapted to move one of said bending members, a table located below said block and connected with all of the cams, means for actuating the table, and a frame for supporting the block, table and actuating means.

6. Apparatus for making an armature including a commutator, the risers of which include spaced bendable portions extending substantially radially from the commutator and defining notches for receiving armature conductors which includes, in combination, a block adapted to support an armature vertically, a plurality of horizontally sliding members supported by the block and each adapted to be received between certain risers and bend them against certain armature conductors, a plurality of cams vertically movable through the block and each adapted to move one of said bending members, a table located below said block and connected with all of the cams, a fluid pressure device located below the table for actuating the table, and a frame for supporting the block,

table and fluid pressure means.

In testimony whereof we hereto aflix our signatures.

EARL M. POLK. ROBERT H. AHLERS. 

